Silica sol casting, lost wax casting.ASTM-A27 Grade 70-36 SteelWe produce investment castings in lost wax from a few grams up to 50KGs, and can economically produce low quantities with manual tooling, or high volumes utilizing multi-cavity automatic molding tools. We design and machining the tooling in ourself facility, so quick lead time and control quality for first article sample is our advatage, of course, we supply mass production with consistent quality as well.